Algebra 2 word problem

Question

To make pink paint, one must mix 4 parts white paint with 1 part red paint. If a large ballroom at Fairyland calls for 140 gallons of pink paint, how many gallons of whit paint are needed?

Answer 1

Hi Natalie,

 

In order to make pink paint you need (4/5) parts (80%) white paint and (1/5) parts (20%) red paint.  In order to make 140 gallons of pink paint you would need 0.8 x 140 gallons = 112 gallons of white paint.

 

Ari